I had a rental agreement with houseowner, as per agreement if I am vacating the house I need to give one month notice in advance or I had to pay 1 month rent, but my owner is forcing me that if I vacate today I need to pay the rent from this month upto the agreement end-date, like 5 months rent. She don't provide water, she'll lock everything including motor, please provide some advice, she will say in Bangalore this is common happening,

Immediately lodge FIR against landowner for such illegal activities. This will be the best remedy. This is an illegal act not common things. This illegal acts of landlord became common activities due to indulgence and acceptance by foolish and innocent people.